Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Maryann Deleon, MD

Pediatrics Physician in Highland Park, IL · enumerated 2006 · practices at Endeavor Health Clinical Operations.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1982786091

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Registry record

Entity type Individual (Type 1)

Name Maryann Deleon

Credential MD

Sex Female

Practice address 777 Park Ave W, Highland Park, IL, 60035

Phone (847) 480-2833

Fax (847) 480-2675

Enumeration date Oct 19, 2006

Last updated in NPPES Mar 31, 2021

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 036098323 (IL) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
036098323	Other	IL	IL STATE LIC

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1982786091 active?

Yes, as of the latest NPPES snapshot, NPI 1982786091 is active (record last updated 2021-03-31).

How do I verify Maryann Deleon's NPI record?

Cross-check NPI 1982786091 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-03-31.